SMS notify me when I have an up-coming Google Calendar event

I need help getting an automation to trigger.

I want to be SMS notified when there is an up-coming Google Calendar event.

This is the YAML code of what the visual editor made. It doesn’t work.

alias: Calendar Event
description: Calendar Event
trigger:
  - platform: calendar
    event: start
    offset: "-0:15:0"
    entity_id: calendar.wpt_gmail_com
    id: Calendar Event
condition: []
action:
  - if:
      - condition: trigger
        id: Calendar Event
    then:
      - service: notify.pushover
        data: {}
mode:
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